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Type3 := Type.
definition
Type3
matita/components/ng_kernel
matita/components/ng_kernel/bug_universi.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
Type2 : Type3 := Type.
definition
Type2
matita/components/ng_kernel
matita/components/ng_kernel/bug_universi.ma
[]
[ "Type3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
Type1 : Type2 := Type.
definition
Type1
matita/components/ng_kernel
matita/components/ng_kernel/bug_universi.ma
[]
[ "Type2" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
t: Type2
≝ k: Type3 -> t.
inductive
t
matita/components/ng_kernel
matita/components/ng_kernel/bug_universi.ma
[]
[ "Type2", "Type3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
f n := match n with [ O => O | S m => g m ] and g m := match m with [ O => O | S n => f n ].
let rec
f
matita/components/ng_kernel
matita/components/ng_kernel/test.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hole : ∀A:Type.A → A
≝ λA.λx.x.
definition
hole
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
id : ∀A:Type.A → A
≝ λA.λx.x. (* Common case in dama, reduction with metas inductive list : Type := nil : list | cons : nat -> list -> list. let rec len l := match l with [ nil => O | cons _ l => S (len l) ]. axiom lt : nat -> nat -> Prop. axiom foo : ∀x. Not (lt (hole ? x) (hole ? O)) = (lt x (len nil) -> False). *) (* meta1 Vs meta2...
definition
id
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
foo: (100+111) = (100+110). (id ?(id ?(id ?(id ? (100+100))))) = (id ?(id ?(id ?(id ? (99+100))))).[3: apply (refl_eq nat (id ?(id ?(id ?(id ? (98+102+?))))));
axiom
foo
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[ "id", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
foo: (λx,y.(λz. z (x+y) + z x) (λw:nat.hole ? w)) = λx,y.x.
axiom
foo
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[ "hole", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
foo: (λx,y.(λz. z x + z (x+y)) (λw:nat.hole ? w)) = λx,y.x.
axiom
foo
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[ "hole", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
foo: (λx,y.(λz. z x + z y) (λw:nat.hole ? w)) = λx,y.x.
axiom
foo
matita/components/ng_refiner
matita/components/ng_refiner/esempio.ma
[]
[ "hole", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
nat : Type[0]
≝ O: nat | S: nat → nat.
inductive
nat
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test1: Type[1].
axiom
test1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test2: Type[1] → Type[1].
axiom
test2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test3: Prop → Type[1] → CProp[1] → Type[1] → Type[2].
axiom
test3
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test4: ∀A:Type[1]. A → ∀B:Type[1]. B → ∀C:Prop. C → Type[1].
axiom
test4
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test4': ∀C:Prop. C → C.
axiom
test4'
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test4'': ∀C:Prop. C → nat.
axiom
test4''
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test4''': ∀C:Type[1]. C.
axiom
test4'''
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test4_5: (∀A:Type[0].A) → nat.
axiom
test4_5
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test5: (Type[1] → Type[1]) → Type[1].
axiom
test5
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
test6: Type[1] → Prop.
axiom
test6
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest1: Type[1]
≝ nat → nat.
definition
dtest1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest2: Type[2]
≝ ∀A:Type[1]. A → A.
definition
dtest2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest3: Type[1] → Type[1]
≝ λA:Type[1]. A → A.
definition
dtest3
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest4: Type[1] → Type[1]
≝ λA:Type[1].dtest3 A.
definition
dtest4
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "dtest3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest5: Type[1] → Type[1]
≝ dtest3.
definition
dtest5
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "dtest3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest6: Type[1]
≝ dtest3 nat.
definition
dtest6
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "dtest3", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
True : Prop
≝ I: True.
inductive
True
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest7: Prop
≝ True → True.
definition
dtest7
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest8: Type[1]
≝ dtest3 True.
definition
dtest8
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "dtest3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest9: Type[1]
≝ dtest3 Prop.
definition
dtest9
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "dtest3" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest10: Type[1] → Type[1] → Type[1]
≝ λX,Y.X.
definition
dtest10
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest11: Type[1] → nat → Type[1] → Type[1]
≝ λ_:Type[1].λ_:nat.λX:Type[1]. X → nat → test1.
definition
dtest11
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat", "test1" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest12
≝ λ_:Type[1].λ_:nat.λX:Type[1]. X → nat → test1.
definition
dtest12
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat", "test1" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest13
≝ dtest3 nat → dtest3 True → dtest3 Prop → nat.
definition
dtest13
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "dtest3", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest14
≝ λX:Type[2]. X → X.
definition
dtest14
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest15
≝ ∀T:Type[1] → Type[1]. T nat → T nat.
definition
dtest15
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest16
≝ ∀T:Type[1]. T → nat.
definition
dtest16
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest17
≝ ∀T:dtest14 Type[1]. T nat → dtest14 nat → dtest14 nat.
definition
dtest17
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "dtest14", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest18
≝ λA,B:Type[0].λn:nat.λC:Type[0].A.
definition
dtest18
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest19
≝ dtest18 nat True O nat → dtest18 nat nat O nat.
definition
dtest19
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "dtest18", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
dtest20
≝ test5 test2.
definition
dtest20
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "test2", "test5" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest1
≝ λx:nat.x.
definition
ttest1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest2
≝ λT:Type[1].λx:T.x.
definition
ttest2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest3
≝ λT:Type[1].λx:T.let y ≝ x in y.
definition
ttest3
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest4
≝ λT:Type[1].let y ≝ T in λx:y.x.
definition
ttest4
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest6
≝ ttest4 nat.
definition
ttest6
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat", "ttest4" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest7
≝ λf:∀X:Type[1].X. f (nat → nat) O.
definition
ttest7
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest8
≝ λf:∀X:Type[1].X. f (True → True) I.
definition
ttest8
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest9
≝ λf:∀X:Type[1].X. f (True → nat) I.
definition
ttest9
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest10
≝ λf:∀X:Type[1].X. f (True → nat → nat) I O.
definition
ttest10
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest11_aux
≝ λS:Type[1]. S → nat.
definition
ttest11_aux
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest11
≝ λf:ttest11_aux True. f I.
definition
ttest11
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "ttest11_aux" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
ttest12
≝ λf:True → nat. f I.
definition
ttest12
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "True", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
rtest1 (n:nat) : nat
≝ match n with [ O ⇒ O | S m ⇒ rtest1 m ].
let rec
rtest1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
f (n:nat) : nat
≝ match n with [ O ⇒ O | S m ⇒ g m ] and g (n:nat) : nat ≝ match n with [ O ⇒ O | S m ⇒ f m ]. (*BUG: pattern matching patterns when arguments have been deleted from the constructor are wrong *) coinductive stream: Type[0] ≝ scons : nat → stream → stream. let corec div (n:nat) : stream ≝ scons n (div (S n)).
let rec
f
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "div", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
plus: nat → nat → nat.
axiom
plus
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
rtest2 : nat → stream → nat
≝ λm,s. match s with [ scons n l ⇒ plus m n ].
definition
rtest2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat", "plus" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
meee: Type[0] → Type[0]
≝ .
inductive
meee
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
T1 : (Type[0] → Type[0]) → ∀B:Type[0]. nat → Type[0] → Type[0]
≝ .
inductive
T1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
T2 : (Type[0] → Type[0]) → ∀B:Type[0]. B → Type[0] → Type[0]
≝ .
inductive
T2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
T3 : (Type[0] → Type[0]) → CProp[2]
≝ .
inductive
T3
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
erase
≝ λX:Type[0].Type[0].
definition
erase
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
lt: nat → nat → Prop.
axiom
lt
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
myvect (A: Type[0]) (b:nat) : nat → Type[0]
≝ myemptyv : myvect A b O | mycons: ∀n. lt n b → A → myvect A b n → myvect A b (S n).
inductive
myvect
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "lt", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
False: Prop
≝ .
inductive
False
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
Empty: Type[0]
≝ .
inductive
Empty
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bool: Type[0]
≝ true: bool | false:bool.
inductive
bool
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
eq (A:Type[1]) (a:A) : A → Prop
≝ refl: eq A a a.
inductive
eq
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
cast_bug1
≝ λH:eq Type[0] bool nat. S (match H return λA:Type[0].λ_.A with [ refl ⇒ true ]).
definition
cast_bug1
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "bool", "eq", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
cast_bug2
≝ match true return λb.match b with [ true ⇒ nat → nat | false ⇒ bool ] with [ true ⇒ S | false ⇒ false ] O.
definition
cast_bug2
matita/matita/lib
matita/matita/lib/extraction.ma
[]
[ "bool", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_Type0
≝ λA:Type[0] .λa,b:A.Prop.
definition
hint_declaration_Type0
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_Type1
≝ λA:Type[1].λa,b:A.Prop.
definition
hint_declaration_Type1
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_Type2
≝ λa,b:Type[2].Prop.
definition
hint_declaration_Type2
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_CProp0
≝ λA:CProp[0].λa,b:A.Prop.
definition
hint_declaration_CProp0
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_CProp1
≝ λA:CProp[1].λa,b:A.Prop.
definition
hint_declaration_CProp1
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
hint_declaration_CProp2
≝ λa,b:CProp[2].Prop.
definition
hint_declaration_CProp2
matita/matita/lib
matita/matita/lib/hints_declaration.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
boh: (False → False) = True.
axiom
boh
matita/matita/lib
matita/matita/lib/inconsistent.ma
[]
[ "False", "True" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
J: False → False
≝ λf. match f in False with [ ].
definition
J
matita/matita/lib
matita/matita/lib/inconsistent.ma
[]
[ "False" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
I2: True
≝ match boh with [ refl ⇒ J ].
definition
I2
matita/matita/lib
matita/matita/lib/inconsistent.ma
[]
[ "True", "boh" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
err (u: True): False
≝ match u with [ I ⇒ err I2 ].
let rec
err
matita/matita/lib
matita/matita/lib/inconsistent.ma
[]
[ "False", "I2", "True" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
oops: False ≝ err I.
lemma
oops
matita/matita/lib
matita/matita/lib/inconsistent.ma
[]
[ "False", "err" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
inconsistent: Type[U]
≝ Type[U].
definition
inconsistent
matita/matita/lib
matita/matita/lib/self_typing.ma
[]
[]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
sameF_upto: nat → ∀A.relation(nat→A)
≝ λk.λA.λf,g.∀i. i < k → f i = g i.
definition
sameF_upto
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "nat", "relation" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
sameF_p: nat → (nat → bool) →∀A.relation(nat→A)
≝ λk,p,A,f,g.∀i. i < k → p i = true → f i = g i.
definition
sameF_p
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "bool", "nat", "relation" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
sameF_upto_le: ∀A,f,g,n,m. n ≤m → sameF_upto m A f g → sameF_upto n A f g.
#A #f #g #n #m #lenm #samef #i #ltin @samef /2 by lt_to_le_to_lt/ qed.
lemma
sameF_upto_le
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "lt_to_le_to_lt", "sameF_upto" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
sameF_p_le: ∀A,p,f,g,n,m. n ≤m → sameF_p m p A f g → sameF_p n p A f g.
#A #p #f #g #n #m #lenm #samef #i #ltin #pi @samef /2 by lt_to_le_to_lt/ qed.
lemma
sameF_p_le
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "lt_to_le_to_lt", "sameF_p" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
prodF
≝ λA,B.λf:nat→A.λg:nat→B.λm,x.〈 f(div x m), g(mod x m) 〉.
definition
prodF
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "div", "mod", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bigop (n:nat) (p:nat → bool) (B:Type[0]) (nil: B) (op: B → B → B) (f: nat → B)
≝ match n with [ O ⇒ nil | S k ⇒ match p k with [true ⇒ op (f k) (bigop k p B nil op f) |false ⇒ bigop k p B nil op f] ].
let rec
bigop
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "bool", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bigop_Strue: ∀k,p,B,nil,op.∀f:nat→B. p k = true → \big[op,nil]_{i < S k | p i}(f i) = op (f k) (\big[op,nil]_{i < k | p i}(f i)).
#k #p #B #nil #op #f #H normalize >H // qed.
lemma
bigop_Strue
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bigop_Sfalse: ∀k,p,B,nil,op.∀f:nat→B. p k = false → \big[op,nil]_{ i < S k | p i}(f i) = \big[op,nil]_{i < k | p i}(f i).
#k #p #B #nil #op #f #H normalize >H // qed.
lemma
bigop_Sfalse
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
same_bigop : ∀k,p1,p2,B,nil,op.∀f,g:nat→B. sameF_upto k bool p1 p2 → sameF_p k p1 B f g → \big[op,nil]_{i < k | p1 i}(f i) = \big[op,nil]_{i < k | p2 i}(g i).
#k #p1 #p2 #B #nil #op #f #g (elim k) // #n #Hind #samep #samef normalize >Hind /2/ <(samep … (le_n …)) cases(true_or_false (p1 n)) #H1 >H1 normalize // <(samef … (le_n …) H1) // qed.
lemma
same_bigop
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "bool", "nat", "p1", "p2", "sameF_p", "sameF_upto", "true_or_false" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
pad_bigop: ∀k,n,p,B,nil,op.∀f:nat→B. n ≤ k → \big[op,nil]_{i < n | p i}(f i) = \big[op,nil]_{i < k | if leb n i then false else p i}(f i).
#k #n #p #B #nil #op #f #lenk (elim lenk) [@same_bigop #i #lti // >(not_le_to_leb_false …) /2/ |#j #leup #Hind >bigop_Sfalse >(le_to_leb_true … leup) // ] qed.
theorem
pad_bigop
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "bigop_Sfalse", "le_to_leb_true", "leb", "nat", "not_le_to_leb_false", "same_bigop" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
pad_bigop1: ∀k,n,p,B,nil,op.∀f:nat→B. n ≤ k → (∀i. n ≤ i → i < k → p i = false) → \big[op,nil]_{i < n | p i}(f i) = \big[op,nil]_{i < k | p i}(f i).
#k #n #p #B #nil #op #f #lenk (elim lenk) [#_ @same_bigop #i #lti // |#j #leup #Hind #Hfalse >bigop_Sfalse [@Hind #i #leni #ltij @Hfalse // @le_S // |@Hfalse // ] ] qed.
theorem
pad_bigop1
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "bigop_Sfalse", "nat", "same_bigop" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bigop_false: ∀n,B,nil,op.∀f:nat→B. \big[op,nil]_{i < n | false }(f i) = nil.
#n #B #nil #op #f elim n // #n1 #Hind >bigop_Sfalse // qed.
theorem
bigop_false
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "big", "bigop_Sfalse", "nat" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
Aop (A:Type[0]) (nil:A) : Type[0]
≝ {op :2> A → A → A; nill:∀a. op nil a = a; nilr:∀a. op a nil = a; assoc: ∀a,b,c.op a (op b c) = op (op a b) c }.
record
Aop
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "assoc" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
pad_bigop_nil: ∀k,n,p,B,nil.∀op:Aop B nil.∀f:nat→B. n ≤ k → (∀i. n ≤ i → i < k → p i = false ∨ f i = nil) → \big[op,nil]_{i < n | p i}(f i) = \big[op,nil]_{i < k | p i}(f i).
#k #n #p #B #nil #op #f #lenk (elim lenk) [#_ @same_bigop #i #lti // |#j #leup #Hind #Hfalse cases (true_or_false (p j)) #Hpj [>bigop_Strue // cut (f j = nil) [cases (Hfalse j leup (le_n … )) // >Hpj #H destruct (H)] #Hfj >Hfj >nill @Hind #i #leni #ltij cases (Hfalse i leni (le_S … ltij...
theorem
pad_bigop_nil
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "Aop", "big", "bigop_Sfalse", "bigop_Strue", "nat", "same_bigop", "true_or_false" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
bigop_sum: ∀k1,k2,p1,p2,B.∀nil.∀op:Aop B nil.∀f,g:nat→B. op (\big[op,nil]_{i<k1|p1 i}(f i)) \big[op,nil]_{i<k2|p2 i}(g i) = \big[op,nil]_{i<k1+k2|if leb k2 i then p1 (i-k2) else p2 i} (if leb k2 i then f (i-k2) else g i).
#k1 #k2 #p1 #p2 #B #nil #op #f #g (elim k1) [normalize >nill @same_bigop #i #lti >(lt_to_leb_false … lti) normalize /2/ |#i #Hind normalize <minus_plus_m_m (cases (p1 i)) >(le_to_leb_true … (le_plus_n …)) normalize <Hind // <assoc // ] qed.
theorem
bigop_sum
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "Aop", "assoc", "big", "k1", "le_plus_n", "le_to_leb_true", "leb", "lt_to_leb_false", "minus_plus_m_m", "nat", "p1", "p2", "same_bigop" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175
plus_minus1: ∀a,b,c. c ≤ b → a + (b -c) = a + b -c.
#a #b #c #lecb @sym_eq @plus_to_minus >(commutative_plus c) >associative_plus <plus_minus_m_m // qed.
lemma
plus_minus1
matita/matita/lib/arithmetics
matita/matita/lib/arithmetics/bigops.ma
[]
[ "associative_plus", "commutative_plus", "plus_minus_m_m", "plus_to_minus", "sym_eq" ]
https://github.com/LPCIC/matita
794ed25e6e608b2136ce7fa2963bca4115c7e175